kth cost 268,thessaloniki 2002 /a. karlsson cost 268 wavelength scale photonic components for...
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KTH
COST 268,Thessaloniki 2002 /A. Karlsson
COST 268 COST 268 Wavelength Scale Photonic Wavelength Scale Photonic
Components for Components for TelecommunicationsTelecommunications
Final report presentationFinal report presentationAnders Karlsson, Chairman
Dep. Microelectronics & Kista Photonics Research Center Royal Institute of Technology-KTH,
Kista, Sweden
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
OutlineOutline• COST 268 scientific backgroundCOST 268 scientific background
• COST 268 accomplishmentsCOST 268 accomplishments
• COST 268 ”offsprings”COST 268 ”offsprings”- new COST proposals & FP6 EoI- new COST proposals & FP6 EoI
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
Photonics & market?Photonics & market?
http://www.lightreading.com/
Nasdaq
10 optical companies
IT backlash has hit photonics
But, only photonics can provide long term
infrastructurerecovery when?
Flexibleall-opticalnetwork
IT backlash has hit photonics
But, only photonics can provide long term
infrastructurerecovery when?
Flexibleall-opticalnetwork
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
COST 268 foresight…COST 268 foresight…
Wavelength Scale Photonics- Reduced power consumption
- Potentially low cost
- Increased device speed
- Higher level of integration
What is seen today:•VCSELs dominating for datacom(VCSEL= Vertical Cavity Surface Emitting Laser)
• LW VCSELs for access network
• High refractive index contrast & photonic crystals for integrated optics
• Novel gain materials for new wavelengths => new applications
Photonic R&D gives huge paybacks Swedish VINNOVA agency:
- IT, Telecom and biotech R&D =>10-30 time return over 5-10 years
Photonic R&D gives huge paybacks Swedish VINNOVA agency:
- IT, Telecom and biotech R&D =>10-30 time return over 5-10 years
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
COST 268 in briefCOST 268 in brief
Our aim: “to investigate and promote the use of (optical)
wavelength scale photonics in telecommunications”
•Our work:- work on joint technical topics, discussed in WG sessions - sponsor “short term missions”- arrange or co-assist with workshops - assist with coordination and dissemination of research
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
COST 268 COST 268 OrganisationOrganisation
WG3Novel gain materialsChair:Alfred Forchel,
Univ. Wurtzburg,
Andrea Fiore, Roma& EPFLEli Kapon,
EPFL, Switzerland
WG2Photonic CrystalsChairs:Richard M De La RueGlasgow Univ.,Rene DeRiddersTwenteGeorge Kiriakidis,
FORTH, Greece
WG1 Vertical cavitiesChair:Jan Danckaert, VuBRoel Baets, Peter Bienstmann,
Univ. Gent
Karl-Heinz Gulden
CSEM, Zurich,
ManagementCommittee
COST TCT& TC secretariat
Chair, vice-chair
+administration
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
Participation in COST Participation in COST 268268
Large community
-19 member countries
- 3 associated members
- more than 40 groups
- Universities and industries
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
COST 268 sample COST 268 sample resultsresults
Modulation properties of RED 670 nm
VCSELs for plastic optical fiber (POF)
- 3-dB bandwidth = 4.5GHz
- 1 Gbit/s “error-free” transmission through 50m GI-POF KTH&Zarlink (MITEL) invited paper Photonics West 2000
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
VCSEL modeling I...VCSEL modeling I...
Resonance wavelength (d=8 um)
978,5
979,0
979,5
980,0
980,5
981,0
981,5
2 3 4 5position
GentChalmersAir ForceCSEMPlanarTorinoTorino LPBerlinIllinois
Investigate position dependent effectof thin oxide window
nm
25 period DBR
30 period DBR
5 nm QW
Oxide
• 9 group did modeling comparisons• 7 groups compared oxidation rate from joint wafers
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
VCSEL modeling II...VCSEL modeling II...
10-5
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Turn-on 1-3 Ith
Pow
er (
mW
)
Time (ns)
Politecnico di Torino
KTH, Stockholm
Santander
Total
Side mode
Develop & compare in-depth models for VCSEL design and for e.g. transmission modelling
5 lab-comparison
Develop & compare in-depth models for VCSEL design and for e.g. transmission modelling
5 lab-comparison
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
WG 2 Modeling ExerciseWG 2 Modeling Exercise
26 28 30 32 34 36 38
1
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y [
m]
t= 200 fs
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ng
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Goal: understand role of lossesin deeply etched gratings
Importance: compact integrated opticsfor DWDM
COST 268:Comparative modeling byPrague, Hagen, Twente, Gent, and Glasgow
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
STMs an important STMs an important vehiclevehicle“High speed properties of tunnel-junction VCSELs”
“Photonic Crystal cavities”“Agreement between numerical modelling and experimental results on
the coupling constants in multicore Photonic crystal fibers”"Ultrafast carrier dynamics in 1.3 m quantum dot amplifiers »
“Optical pumping experiments on VCSEL cavities with GIRO gratings”
“Modeling of multimode behavior of VCSELs.”
"Modelling of vertical cavity resonances in photonic crystal films"
"Recent insights in the polarisation behaviour of VCSELs: experiments and theory",
“Analog distortion measurements of VCSELs”
"High Speed Modulation Characteristics of 1.55 µm InP-based VCSELs with buried tunnel junction"
"Experimental-theoretical comparison of polarization instabilities in VCSELs"
"Modelling of electronic states in InAs/GaAs quantum dots emitting around 1.3 m""Linewidth measurements of 1.5 µm VCSELs"
"Inclusion of distortion and noise in rate equations for VCSELs" "Experimental study of the dynamics of polarisation switching in VCSELs"
15 STMsSo far
Twomorethis
summer
15 STMsSo far
Twomorethis
summer
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
COST 268 meetingsCOST 268 meetings• WG/MC meeting, 981019, Brussels 20 participants
• WORKSHOP +WG/MC MEETING, 990315-17, Stockholm, 70 participants workshop: “Wavelength scale photonics”.
• WG/MC, 991018-19 at FORTH, Crete, Greece 40 participants
• WG/MC, 000316-17, University College, Cork, Ireland 50 participants
• WORKSHOP and WG/MC,000828-30, Brussel 90 participantsworkshop: “European workshop on VCSELs: from physics to applications”
• WORKSHOP and WG/MC Würzburg, 010225-28 50 participants workshop: “International workshop on novel gain materials”
• WORKSHOP and MC/WG meetings, Lecce, 010916-19, 2001 50 participantsworkshop: “GaAs based light emitters for 1300nm”
• COST 268 MC/WG meetings, Warsaw, 020425-26, 2002. 180 participants coorganised with ICTON, ESPC, COST 266 and COST 267Workshops: “Transparent optical networks”, “European Photonic Crystal Symposia”
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
COST 268 self evaluation COST 268 self evaluation
• Scientific work has been running well- WG1 very active with many publications- WG2 relatively active with good collaborations- WG3 started sub-critical mass and took time to get running
• COST 268 efficient in using COST modalities- Short term missions, workshops, WG meetings
• COST 268 has contributed to coordination & dissemination- links with IST & individual IST projects
• Preparation of FP6- EoI generated from COST 268 (at least two)
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
Nano- and ultrafast Nano- and ultrafast photonicsphotonics- a proposal to COST TIST- a proposal to COST TIST
Top-down need
Flexible networkcapable to
handle very high speedtraffic
Top-down need
Flexible networkcapable to
handle very high speedtraffic
COST 267 COST 268
IST
Beyond 40 Gb/soptical signal processingsmart integrated opticsharness nano-photonics
…Preparing for
next & next-nextphotonic infrastructure
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
Linear and non-linear optical Linear and non-linear optical properties of photonic crystalsproperties of photonic crystals – for – for COST PhysicsCOST Physics
Compact integrated optics
Tailored light emitters
Efficient non-linear optics
Quantum effects
Compact integrated optics
Tailored light emitters
Efficient non-linear optics
Quantum effects
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Wavelength ()T
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Ultra-compact Ultra-compact filterfilter
KTH
COST 268,Thessaloniki 2002 /A. Karlsson
SummarySummary• COST 268, we believe, worked very well
• Technical work well in focus to current worldwide research interest
• Follow-up action(s) planned
• COST 268 paving the way for NoE and IP in FP6
- Strongly motivated from scientific need & expected commercial need
The web-site remains open http://www.ele.kth.se/COST268/
The web-site remains open http://www.ele.kth.se/COST268/